EU ETS network diagnostic.

Columns labels refer to: number of nodes (#N); number of edges (#E); density (dens); reciprocity (rec); transitivity (trans); diameter (d); assortativity (assort). Centralization measures are indicated with symbol <x>, where x is the degree (K), the closeness (C), the betweenness (B) or the eigenvector centrality (evcent). Results refer to the period 2005-2012. Source: Authors’ own elaborations.